name: Coverage

on: [pull_request, push]

env:
  CARGO_INCREMENTAL: 0
  CARGO_NET_RETRY: 10
  CI: 1
  RUST_BACKTRACE: short
  RUSTUP_MAX_RETRIES: 10

jobs:
  coverage:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install Rust toolchain
        run: |
          rustup update --no-self-update nightly
          rustup default nightly
          rustup component add --toolchain nightly rust-src rustc-dev rustfmt
          # We also install a nightly rustfmt, because we use `--file-lines` in
          # a test.
          rustup toolchain install nightly --profile minimal --component rustfmt

          rustup toolchain install nightly --component llvm-tools-preview

      - name: Install cargo-llvm-cov
        uses: taiki-e/install-action@cargo-llvm-cov

      - name: Install nextest
        uses: taiki-e/install-action@nextest

      - name: Generate code coverage
        run: cargo llvm-cov --workspace --lcov --output-path lcov.info
      
      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v5
        with:
          files: lcov.info
          fail_ci_if_error: false
          token: ${{ secrets.CODECOV_TOKEN }}
          verbose: true